Graphene-based sheets are found to be excellent hair dyes. Graphene oxide (GO) and its reduced form r-GO can be used to create water-based formulations to form smooth and continuous coatings on hair. This not only avoids the use of toxic, small molecular ingredients in common hair dyes but also renders new properties of hair for enhanced comfort, such as greatly improved antistatic performance and heat dissipation. After drying, the graphene hair dyes can form a strongly adhering coating on hair surfaces, which can resist repetitive washing with shampoo, and thus reach the performance requirement of permanent hair dyes. The color of the GO coating can be gradually darkened or patterned to create the effect of gradient dyeing, and the lightness of the resulting r-GOcoating can be adjusted through the loading level to produce different shades.

发现基于石墨烯的片材是优异的染发剂。氧化石墨烯（GO）及其还原形式r-GO可用于创建水基配方，以在头发上形成光滑连续的涂层。这不仅避免了在普通染发剂中使用有毒的小分子成分，而且还赋予了头发新的特性以增强舒适度，例如大大提高了抗静电性能和散热能力。干燥后，石墨烯染发剂可以在头发表面形成牢固粘附的涂层，可以抵抗用洗发剂反复洗涤，从而达到永久染发剂的性能要求。GO涂层的颜色可以逐渐变暗或形成图案，以产生渐变染色效果，并且可以通过加料量调节所得r-GOcoat的亮度，以产生不同的阴影。